40468445887 has 2 divisors, whose sum is σ = 40468445888. Its totient is φ = 40468445886.

The previous prime is 40468445869. The next prime is 40468445893. The reversal of 40468445887 is 78854486404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40468445887 - 2²³ = 40460057279 is a prime.

It is a super-2 number, since 2×40468445887² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40468442887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20234222943 + 20234222944.

It is an arithmetic number, because the mean of its divisors is an integer number (20234222944).

Almost surely, 2^40468445887 is an apocalyptic number.

40468445887 is a deficient number, since it is larger than the sum of its proper divisors (1).

40468445887 is an equidigital number, since it uses as much as digits as its factorization.

40468445887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27525120, while the sum is 58.

The spelling of 40468445887 in words is "forty billion, four hundred sixty-eight million, four hundred forty-five thousand, eight hundred eighty-seven".